Plow



Jan. 17, 1928.

L. C. HESTER PLOW Filed June 24. 1926 2 Sheets-Sheet 1 z5 INVENTOR L. C .Heade/r 22 2 f.' ...'fllllImm ATTORN EYS Jan. 1928"."

' L. c. HEsTER 1656354 PLow Filed June 24. 1926 2 Sheets-Shoot 2 INVENTOR L. @.Heser.

@.IIIIIHNMI.. al I l ATTORNEYS Patented Jan. 17, 1928.`

N y UNITED STATES PArEN-rorrica.

LEvT C. BESTER, or` .LaonsoNvI/Lmi;` FLORIDA;

PLOW.

Application nieuwe 24, 192s., semi No 1118.290.

This invention, relates in general to an improvement in `plows and most particularly to an` improvement in disc plows especially designed for use on tractors.

5. The obj vectof the present invention resides in the provision of a plowof this character which is `so constructed and organized that asimany as three disc plows may be mounted on a single push bar without interferring with thecontrol of the plow or the ease of operation.` In addition to these advantages it? is` possible and entirely practicable to eniploytliree disc plows without extending the front axle of the tractor on'which the plow is used.

view showing 'a portion` of the lift support,

Figure 4 is a fragmentary perspective view showing the combined guide and lift support and y l Figure 5 is a view partly in front elevation and partly in transverse section further illustrating the combined guide and lift suport. p Referring to the drawings the numeral 1 4o designates' generally a tractor which is of the conventional type. The present invention proposes the provision of a push bar,l

designated generally at 2, and which lpreferably consists of a number of `dat pieces of meta-l 3 fastened together as will hereinafter more clearly appear. The rearward end of this bar is pivotally and positively mounted on any suitable part yof the tractor at the rear thereof, the push bar extending forwardly along one sideA of the tractor as shown in. the drawings. Vliile the point of attachment of the bar 2 to the tractor may vary in the embodiment shown it is pivotally connected to lugs 4 integral with i and depending from the axle housing 5, a

Figure 3 1s a` fragmentary perspective,

pivot pin 6 being employed to eiect pivotal connection between the bar 2 and the lugs 4.. If desired the plow may be ivot-V ally connected by suitable means wit the draft hitch of the tractor. Plow beams, designated generally at 7, 8

have journals or boxes 10, 11 and 12 which suitably support disc plows 13, 14 and 15,` respectively, the (plows 13, 14 and 15 having their axes aligne The plow beam 7 has an `attaching portion 16 fastened to the push bar 2 by means of rivets 17 which also serve `and 9 are mountedon the push bar 2 and-` to secure the `pieces 3 of the bar 2 together.

Forwardly ofthe attaching portion 10 the plowbeam7 isY made of reversely. inclined portions 1,8 and 19, said portions 18, and 19 vbeing connected by a double connecting portion 20. `The inclined portion 19 of the beam 7terniinates in an attaching foot' 21` secured to the push bar 2 by bolts and nuts 22a y The, plow beams 8 and 9 are preferably constructed of a single piece of bar stock, the plow beamV 8 being constituted by an inclined portion 23. of said'bar stock, the inclined Yportion 23. extending substantially parallel to the inclined portion 19. The bar of metal which makes up the plow'beam 9 has a rearwardly inclined portion 24 between the portion 23 and an attaching portion 25 secured by bolts and nuts 26 to the push bar 2.` Forwardly ofv the attaching portion 25 the b ar stock making up the plow beams 8` and 9 has an outwardly and forwardly inclined connecting and offset. portion 27, at the outer end of which an outwardly and rearwardly inclined portion 28 i is provided. It is this portion 28 which carries the journal 12 for the disc plow 13 and this` portion 28 is substantially parallel to` the inclined portions 23 and 19 on which the disc `plows 13. and 14, respectively, are mounted: 4 A

' In order to brace the inclined portions 19, 23 and 28 to better adapt them to sustain the stresses incident to the plowing operation a brace member 30 is provided and includes a bridge portion 31 and depending arms 32, 33 and 34 fxedly connected to the portions 19, 23 and 28, respectively, of the plow beams 7, 8 and 9. The portion 33 is bifurcated at its upper end and the sections of the bifurcated end, designated at 33,

bridge portion 31 overlies the disc 13 and 14 and the arms extend down behind the discs with which they are associated.

Adjacent the forward end of the tractor a bracket, designatedl generally `at 40, in mounted on the body of the tractor and as shown in F ig. 3 this bracket 40 includes a member 41 having a U-shaped clip 42 engaging over the flange 43 of the housing sec tion 44 oi the tractor housing. This niember 41 has an outwardly extending portion 45 terminating in an upstanding attaching portion 46. The bracket 40 is completed by means of a bracing member 47 having a cuived portion 48, bolted, as at 49, to the housing 44. The bracing member 47 also has an outwardly extending portion 50 and a depending attaching portion 51, the attaching portions 56 and 51 beingV vertically aligned. On the attaching portions 41a combined litt support and guide, designated generally at 52, is mounted. This litt support and guide 52 includes an angle bar 53 bolted or riveted to the attaching plates 46 and 51. A second angle bar 54 is provided in conjunction with the bar 53 and extends parallel thereto to fleline a guide slot 55 in which the forward end of the push bar 2 is iitted toi' vertical swinging movement. The bar 54 is held and supported by means of a plate 56 riveted, as at 57, to the bar 53 and, as at 58, to the bar 54. On the upper ends of the bai'A 54 a litt sector 60 is pivotally mounted, as at 61. This litt sector has its periphery provided with a groove 62. To one end of the litt sector a chain 63 is secured, the chain 63 extending around the groove 62 of the sector and having its lower end pivotally connected, as at 64, to the forward end of the push bar 2. A lever arm 65 has one end iixed by means of bolts or rivets 66 to the sector 60 and the opposite end oi this lever is pivotally connected,as at 67, to an operating bar 68. The operating bar 68 has a handle portion 69 and intermediate its ends is provided with a series of notches 70. The bar 68 is shiftably iitted through a U-shaped guide 7l carried at the upper end oi' the standard 72 bolted or other wise suitably secured to a stationary part of the tractor body. A spring '73 is associated with the guide 71 and hooks over the bar 68 to urge the bar down against the lower portion of the guide 71, thereby causing any notch 70 that may be aligned with the lower portion of the guide 71 to receive such portion of the guide whereby to hold the bar 68 in Vadjusted position.

For the purpose of couiiterbalancing the Y weight of theA plow assembly during ,the lifting operation only a retractile coil springY swing over the influence of the spring. ThisV greatly facilitates the lift of the plowasseinbly by applying a rearward pullupon the operating bar 68. The Sector takesthe motion ot' the lever aiin and etlicieiitly translates it into a quick acting litt on the plow assembly. Then when the plows are lowered into engagement with the ground the arm is locked in position by the engagement of the selected notch with the guide 71. This prevents the spring from tendiii to lift the plow at this time and the full weight ot the plow assembly is effective to urge the plow down into the ground, thereby insuring the maximum depth of cut and also a i uniform depth of cut. It is to be noted that any vibrations that may be set up inthe wheels, axles or runningV gear are not transmitted to the plow assembly and consequently there will iiot be an uneven furrow at the same time the plow assembly is free to move up over rocks, boulders or the like that possibly might be too heavy for the plow to cut through. Another advantage which the invention possesses is that it is possible to use three disc plows without extending the front axle.

that I claim is A plow for use on tractors including a push bar having its rearward end pivotally connected to the tractor, plow beams mounted on the push bar, each plow beam having an inclined portion, the inclined portionsA being parallel, disc plows mounted on the inclined portions, and a brace for `the inclined portions including a bridge member overlying the inclined portions and the in! termediate disc plows, and arms coiiiiectiii with the inclined portions.

' LEVI C. HESTER. 

